Machine for making paper tubes.



0. H ROES SLING. MACHINE FOR MAKING PAPER TUBES.

APPLICATION. FILED JAN. 19, 1918. PatentedJuly 2,

3 SHEETSISHEET 1.

I! rav llllllllll /ig V/ll/l/A v Jb Q ZZZ-J55? O. H. ROESSLING. MACHINEFOR MAKING PAPER TUBES.

APPLICATION FILED JAN. 19. I9I8.v

3 SHEETS-SHEET 2.

Patented July 2, 1918.

0. H. ROESSLING. MACHINE FOR MAKING PAPER TUBES.

Patented July 2, 1918.

3 SHEETS-SHEET 3.

' Be it'known that I,

LING, a subject of the King of Belgium,

STATES m nta me OTTO HERMAN ROESSLING, .OF PHILADELPHIA, PENNSYLVANIA,ASSIGNCR'TO CHARLES BECK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A FIRMCOMPRISING CHARLES BECK, CHARLES J; BECK,-A. S. BECK, H. BECK, LEONIDASBECK, AND ANDREW SIMON.

MACHINE FOR MAKING PAPER TUBES.

atented July 2, 1918.

Application filed January 19, 1.918. Serial No. 212,729.

To all whom it concern:

O'r'ro HERMAN Rouss- (having declared my intention of becoming a citizenof the United States,) and a 'resident. of Philadelphia,- county ofPhiladel- 'phia, State of Pennsylvania, have invented certainImprovements in Machines for Making Paper Tubes, of which the followingis a specification.

My invention relates to' certain improvements in machmes formanufacturlng paper tubes.

- One object of my invention is to manufacture endless paper tubes fromflat strips of material fed lengthwise into the forming mechanism i i Afurther object of the invention is to pro-- vide means for securing theseverallayers of paper forming the tube so that one section will be heldfirmly to another and to make a cylindrical tube by a continuousoperat1on.-

The invention also relates to details of the mechanism which will befully described hereinafter. j

In the accompanying drawings:

Figure 1 tion of the machine on the line 1l, Fi 2-; Fig. 1 is aplan viewof the mac ine showing the reels and the pasting mechanism;

F'g. 2 is a side view of the roll section of the machine, I

Fig. 3 is a transverse sectional view on the line 33, Fig. 2;

Fig. 4 is anenlarged sectional view show ing the pairs-of rolls;

Fig. 5 is an end view showing two palrs ofv rolls and the tube insectlon;

Fig. 6 is a detached perspective view showin the mandrel on which theroll is formed; ig, 7 is a perspective view'showlng the method of.forming the strips of paper in the of the formers to produce a tube.Paste, or

able bearings 6.

is a plan view of the roll. p0r-' formed, so that the j the severalstrips. Therolls, which finish I other adhesive material, is applied totwo I of thestrips when a three-ply tubev is paste will be between thetube, are driven continuously, while the mandrel,on which the :tube isformed, is

reciprocated. The mandrel has reducedfportions and is yieldinglyheldsothat the tube will be=pinched between the rolls'and the shoulderon the mandrel which causes the mandrel to move forward until the rollsare opposite the reduced portion of the mandrel,

- when a sprlng will retract the mandrel, '1eav-- ing the tube in theforward position. Thus the tube has an intermittent forward movement.Theconstruction of the machine by which this is accomplished is the mainfeature of the invent-ion.

Referring to the drawings, 1 is. the base of the-machine, suitably.supported,.'and on one end of the machine is a platform 2 carrying threereels 3, 4L and 5, mounted in suit- The paper, whichv eventually formsthe tube, iswound onthese reels and 1s fed from these reels to theformers 7, 8 and 9 respectively. In order to apply paste, or othercementitious material to secure the several thicknesses of papertogether, I provide an apparatus 10: having rolls'll and 12, and the twoside stripsof paper pas'singfrom the reels {i and-5 pass through thepasting apparatus and paste is applied to the under side of each strip,so

that when the strips pass into the formers the pasted side of the secondstrip is applied to the outer, surface of the inner :strip, and, in.turn, the pasted side of the outer strip is applied to the outer surfaceof the intermediate stripso that the outside surface has no exposedpasted sections. I lay noclaim to the pasting apparatus,as any suitableapparatus may be usedwithoutzdeparting from the essential features'ofthe invention.

The formers 7, 8 and 9 are so made and the strips are so fed that' thejoints ofthe several strips, forming the tube, willbe staggered, asshown in Fig. 8. Then the tube passes through a sizing die 13, shown inparticular form of V Figs. 9', and 10, and'from this die to the rolls.

14 is the lower roll .housing and 15 is the upper roll housing. Theupper roll housing is vertically adjustable and has side guides 5 iandzrand j the 5 screws 19,-Tshown by screws are beveled gear wheels 21' whenwithg'ears' 22 on a horizontal shaft 23 I .mounted inrbearings securedto the{.standon the Shae 2a are two hand was '24 the parts are coupledbyturning either hand jwheel'the ends of the upper housingcan be movedin unison, but,, if, t be desired to move .foiiehnd 0 the'housingindependently ofthe other'the-eoupling' 25 is released so that, on.20

' turfning eitherwheel or 24, either end of *the housing can beadjusted;-

. 2 6fconnected to the mandrel 27 and through th fo'rmersl, 8 and 9,they pass through .a die.1 13,Figs. 2, 9fand 10, which reduce thejtubeftoj aboutthe proper size .and also cealso to bring' the tubeto theproper oylin-,

' '47 mounted in boxfles35" either in the lower 'inel'i'ts'the severalstrips-together; The tube -the"nj passes between the'finishing andpress- 30,

5 ji-whichis ofithe proper diameter 'of-the inrolls 3'6 and 37 and over'the mandrel27,

.-,terior"of the'tube. 1 Therolls- 36 and' -37 are alternately arranged,as "shown, so as to insure the compacting] ofthe strips" or plies ofpaper and drical shape. 'The rolls 36 are secured to shafts 46 mountedin boxes 35 located either in'the lower housing 14, or the upper housing15 and the rolls' 37 are secured on shafts housing 14". or the upperhousing 15,*as clearlyill'ustrated in Figs. 2 and 3. v

In the present instance, the lower set of shaftsis, driven froma mainshaft 39 on which-is a sprocket wheel 4 A chainell passes aroundthiswheel and around a Wheel 42 on a worm shaft 43 on which are Worms ofshafts is driven fromthe lowershafts through gearingAS and 48*. By theabove .i ch u arrangement of gears,'allthe rolls are driven ,[at-th'esame speed. Other means of, driving the rollsmay be resorted to withoutdepartj ing from the main features of the invention. Each roll 36 hasflanges .36 forming a deep,annula'r groove conforming to one-half andeach roll 37 is of such width as to pass into thespace between theflanges Q5, .of the roll 36. The groove in the pelr phery of-theroll 37is shallow and con- .;r r toone-half ofthe tube. j ltfwill' be notcedthat the flanges 36 of g the 'roller 3.6 bear upon the hub 30 of theroller 37, so that the rollers are held a proper dotted lines in Fig. 2,

shaft isfma'de in two parts and connectedbya coupling 25 so that whenFigs. .4; and 6, and when ftejr the-paper. strips are made into the. oftubes by passing them. over the rodmovemeiit while the tube 4tmes'hingwithwheels 45;. a The upper set ing the. reduced portions on"themandrel,

themandrel isallowed td be ret acted by the spi' ingjwithout distortingthe tube. v

e I have shown one roll bearing upon it will be understood the hub ofthe other,

I distance apart, and when the reduced por Y 1 tion of themandrel is onaline between the that the rolls may, be spaeed' apart inany suitablemanner so as to: prevent. the dis- Themandrel 27 over-wj 'chxthetube isformedv has a series of reducedfportions 29 audgtapered shoulders 28 areformed at one end ofeach reduced portion, asfshown in in line With therolls, the tube and the mandrel are fed forward t" the reduced portionof the mandrel is,

inline with the rolls. Then the mandrel is released-and its spring 33returns' it so that the. shoulder will be againin line with the rolls,when both the tube and mandrel'will again move forward.- This'action. isvery the shoulders are as in Fig. .4,.then both rapid, themandrel-having a reciprocating moves forward; After the tube passesbetween the last series'of'rolls, it enters acylindrical guide .50,which holds the tube in 'a central posithe proper length by theblade'51. This'blade is suittion, while it is being cut ofllto ablymountedso as to be moved either by hand into the cutting position, orby, automatic mechanism tripped by the tube; This latter feature formsno part of the present invention and formsthe subject of a separateapplication filed by me on the 20th day of February, lfZlS, Serial No.218,292.

Each of the upper rolls is yieldingly held against-the lower rolls bysprings 53, which are located upon the boxes for the shafts of the rollsand projections on the upper housing 15. The lower set of rolls'can be.adjusted vertically by set screws 54, as clearly shown in Fig. 3, and asthe upper housing three strips of paper of the proper width are woundupon the reels 3, 4 and 5, and the strips from the reels 4 and 5 passthrough the pasting device 10, so or'other cementitious material, to onesurface of each of these two strips. Thecen- 'tral strip 30 is H passedthrough the former 7, and the strip from the roll 4.-'is passed throughthe former 8. The strip from theroll 5 is passed through the former 9.

-These formers are tapered, as shown,-and

as to apply paste,

of sa1d portions three strips pass over the mandrel and a strip bend onestrip around another, and the through the sizing die 13, which tends topress the sheets together and: initially to form the tube. It will benoticed that the joint of one strip is as clearly shown in Fig. 8, andthis is accomplished by feeding the first central strip so that jointwill be at the top. Then the from the reel 4 is fed so that the jointwill come to the right hand side and the other strip from the reel 5will come'to the left hand side, as the present tube is a three-plytube. If more plies are used, then additional reels are provided, aswell as additional formers. After this the tube passes between the firstpair of rollers 36 and 37 and then between thebalance of the series ofrolls. These rolls are drivencontinuously and the tube is intermittentlyfed forward,

- while the mandrel, on which the tube is formed, is reciprocated.

As before remarked, the mandrel has a series of reduced, portions andtaperedshoulders are formed at one or both ends so that .as the rollsrotate constantly in one direction the tube is pinched between ashoulder of the mandrel and the rolls, as showninFig. 4L, and both themandrel and the tube will move in. the

direction of the arrow a in said figure As soon as the reduced portionof the mandrel is opposite to'the pinching point of the rolls,

the mandrel is released and its sprlng moves it in the oppositedirection, as indicated by the arrow again brought into alinement withthe centers of he two rolls, when the tube is again pinched and themandrel and tube are againmoved forward in the direction of the arrow.Then the reduced portion of the mandrel is again the center line of therolls and the tube brought in alinement with either remains stationaryor is moved slightly forward, while the mandrel is again retracted. Thisis repeated so thatthe tube has a very rapid intermittentforward'movement, while the mandrel has a very rapi short reciprocatingmovement. This intermediate pinching of the tube brings the severallayers close together and makes the paste adhere firmly to the sections.By having a series of rolls, it insures the pinching of the entiresurface of the tube, as the surface, which would be missed by one roll,is pinched by the second, third and fourth roll. There may be'as many ofthese rolls as desired. 4

In small tubes, and in three-ply tubes, four rolls would be necessaryfor the purpose, but for the larger tubes the number of rollsmay beincreased. In some cases, the number of rolls may be reduced.

In some instances, it may be desirable to locate apair of horizontallyarranged rolls,

out of line with another,

Z2, until the shoulder is dtions and tapered as indicated by dottedlines in 2, at.

the end of a train of vertically arranged rolls in themanufacturefofsome types of tubes, butin the manufacturev of ordinarytypes. of tubes, this horizontal roll is not essential. I

By making each pair of rolls in the manner' shown in Figs/4 and 5, wherethe 'fiangelessroll 37 extends-into the flanged roll 36, the openmgbetween the rolls is .closed at the edges so as to prevent the escape ofpulp, or paste, which might ooze out of the tube, as. it is-beingsqueezed.

It will be noticed that,the sharp edges ofthe rolls 37 fit snuglyagainst the curved portion of the flanged rolls and, as these edges to apropersize, being made in continuous lengths, which can be cut off so asto produce tubes of any length desired and this is accomplished withoutinterfering with the forward movement of the tube.

I claim:

1. The combination in a tube forming machine, of means for forming thetube; a pair of grooved rolls adapted to conform to the shape of thetube; reduced portion and a shoulder over which the tube passes from theforming. means; means for continuously driving the pair of rolls in onedirection; and a spring tending to move the mandrel in the oppositedirection, so that the tube passing through the machine will be movedintermittently forward and the mandrel will be reciprocated.

2. The combination in a tube forming ma chine, of a series of,formersthrough which 'mandrel extending between the rolls of the series, saidmandrel having reduced porshoulders; a spring for retracting the mandrelso that as the tube passes between the rolls and over the mandrel it ispinched between the rolls andthe shoulders on mandrel being carriedforward until the 'red'uced portions of the mandrel are oppositethecenter line of the rolls when the mandrel is released and isretracted so that the tube has an intermittent forward movement, whilethe mandrel has a short reciprocating movement.

3. The combination in a tube forming machine, of' a series of formers;adie through which the formed tube passes; a mandrel having a rodextending through the die and through the formers; a spring on the rodarranged to retract the mandrel, said man-- a mandrel having a themandrel, the tube and the shoulders; a series of rollsthrough which drelhaving reduced portions with inclined the mandrel extends so that whenthe tube is formed and passes into the die and over themandrel andbetween the rolls, it will of the other roll so as to keep the rollsspaced be intermittently pressed and moved forward, While the mandrelwill have a short reciprocating movement.

4. The combination in a machine for making paper tubes, of means forforming the tube; a mandrel and a pair 1 of pressing rolls between whichthe mandrel and the tube extend, one of said rolls having adeep flangeand having a bearing portion con forming to one-half of the tube, theother roll being narrow and adapted to extend into the space between theflanges of the other roll and having a groove 'in i-ts peripheryoonforming to the other half of the I tube.

5. The'combination in apap'er tube forming machine, of a pair of rolls,one roll having a flange and a semi-circular groove, the other having asemi-circular groove in its periphery and arranged to extend between thefiangesi of the first mentioned roll, the

flanges of one roll bearing against the hub a given distance apart; anda mandrel havinga reduced portion; means for retracting the. mandrel{and means for driving the roll so that the tube will be fed forward andthe mandrel will have a reciprocatingmotion.

a tube forming meof means for forming a tube; a man- 6. The combinationin chine,

drel over which the tube extends; a pair of rolls for pressing the .tubeontothe mandrel,

said rolls being geared together; a worm 1 shaft; a worm thereon; a wormwheel on one of theroll'shafts; and means for retracting the mandrelafter it'has been fed forward a given distance by the roll, pinching thetube on the mandrel.

7. The combination in a tube forming ma chine, of three rolls on whichthe strips of paper to form the tube are wound; a past ing devicethrough which two ofsaid strips extendso as to paste one side of eachstrip;

mandrel forward, and when the reduced 0 portion'of the tube is in lineWith the rolls the mandrel will be released and will be re- .tracted.;and a cylindrical guide beyond thelast pair of rolls into which the tubeextends, said guides centering the tube so that it can be severed by acutting off device.

In witness whereof I aflix my signature.

OTTO HERMANROESSLING

